Y = x² + 4x - 5
y = 2x
x² + 4x - 5 = 2x
<u> - 2x - 2x</u>
x² + 2x - 5 = 0
x = <u>-(2) ± √((2)² - 4(1)(-5))</u>
2(1)
x = <u>-2 ± √(4 + 20)</u>
2
x = <u>-2 ± √(24)
</u> 2
x = <u>-2 ± 2√(6)</u>
2
x = -1 ± √(6)
x = -1 + √(6) U x = -1 - √(6)
y = 2x
y = 2(-1 ± √(6))
y = 2(-1) ± 2√(6)
y = -2 ± 2√(6)
(x, y) = (-1 ± √(6), -2 ± 2√(6))
<u />
The value of the expression (12/2)×| 1.3 - 2.16 | is 5.16 .
The Absolute Value of a number means writing the number without the negative sign .
For Example : the absolute value of -2 is |-2| = 2
In the question ,
an expression in words is given as "12 divided by 2 x the absolute value of 1.3 minus 2.16 "
the above expression in numbers can be represented by
= (12/2)×| 1.3 - 2.16 |
= 6 × | 1.3 - 2.16 |
= 6 × |-0.86|
= 6 × 0.86 .... because |-0.86| = 0.86
= 5.16
Therefore , The value of the expression (12/2)×| 1.3 - 2.16 | is 5.16 .
The given question is incomplete , the complete question is
Find the value of the expression " 12 divided by 2 x the absolute value of 1.3 minus 2.16 " ?
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Answer:
It would be $42.96.
Step-by-step explanation:
Expanded: 80,000,000+9,000,000+600,000+30,000+7,000+400+20+1
